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segfault fix

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Originally committed as revision 5178 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-03-18 02:29:58 +00:00
parent b0e6636b2d
commit e70e7a4b17
1 changed files with 3 additions and 0 deletions
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3
libavcodec/huffyuv.c
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@ -808,6 +808,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8
return -1; return -1;
} }
if((unsigned)(buf_size-table_size) >= INT_MAX/8)
return -1;
init_get_bits(&s->gb, s->bitstream_buffer+table_size, (buf_size-table_size)*8); init_get_bits(&s->gb, s->bitstream_buffer+table_size, (buf_size-table_size)*8);
fake_ystride= s->interlaced ? p->linesize[0]*2 : p->linesize[0]; fake_ystride= s->interlaced ? p->linesize[0]*2 : p->linesize[0];